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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "chrome/common/ipc_message.h"
#include "chrome/common/ipc_message_utils.h"
#include "gtest/gtest.h"
#include "mozilla/RandomNum.h"
#include "mozilla/ipc/RawShmem.h"
namespace mozilla::ipc {
static bool SerializeAndDeserialize(UnsafeSharedMemoryHandle&& aIn,
UnsafeSharedMemoryHandle* aOut) {
IPC::Message msg(MSG_ROUTING_NONE, 0);
{
IPC::MessageWriter writer(msg);
IPC::WriteParam(&writer, std::move(aIn));
}
IPC::MessageReader reader(msg);
return IPC::ReadParam(&reader, aOut);
}
void TestUnsafeSharedMemoryHandle(size_t aSize) {
auto maybeHandle = UnsafeSharedMemoryHandle::CreateAndMap(aSize);
ASSERT_TRUE(maybeHandle);
auto [handle, mapping] = maybeHandle.extract();
EXPECT_EQ(mapping.Size(), aSize);
auto inBytes = mapping.Bytes();
for (size_t i = 0; i < aSize; ++i) {
inBytes[i] = static_cast<uint8_t>(i % 255);
}
UnsafeSharedMemoryHandle out;
ASSERT_TRUE(SerializeAndDeserialize(std::move(handle), &out));
auto mapping2 = WritableSharedMemoryMapping::Open(std::move(out)).value();
EXPECT_EQ(mapping2.Size(), aSize);
auto outBytes = mapping2.Bytes();
for (size_t i = 0; i < aSize; ++i) {
EXPECT_EQ(outBytes[i], static_cast<uint8_t>(i % 255));
}
}
TEST(UnsafeSharedMemoryHandle, Empty)
{ TestUnsafeSharedMemoryHandle(0); }
TEST(UnsafeSharedMemoryHandle, SmallSize)
{ TestUnsafeSharedMemoryHandle(2048); }
} // namespace mozilla::ipc
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